As two boys are found not guilty of the murder of 10-year-old Damilola Taylor in November 2000, Panorama examines the events that led to his tragic death and the subsequent police investigation.

Reporter Fergal Keane has spent much of the last year finding out about Damilola and piecing together what happened to him.

Fergal travelled to Nigeria with Damilola's father, Richard Taylor, where the young boy was born and grew up.

'Always smiling'

Fergal meets Damilola's relatives, teachers and friends who remember him as a fun-loving, happy-go-lucky lad, passionate about football, and "always smiling" as his brother Tunde describes him.

But in 2000, Damilola travelled to England with his mother, brother and sister. His sister suffered from epilepsy and couldn't get the treatment she needed in Nigeria.

So they came to England to live on the North Peckham estate with a relative. Richard stayed in Nigeria where he worked as a senior civil servant in the Ministry of Defence.

Terrifying attacks

Damilola went to the local Oliver Goldsmith Primary school. It was after school, on 27 November 2000, that he went to the computer club at the local library, and then began a journey home that he was never to finish.

In Blakes Road, just a few hundred yards from his home, he was stabbed and bled to death in a nearby stairwell.

Fergal Keane's report focuses on the activities of a local gang of children, serious and repeat juvenile offenders, who inflicted a reign of terror on the estate.

Fergal meets victims of the gang - usually children themselves - who suffered terrifying attacks at their hands.

And he talks to police officers and others working with young offenders and asks why the authorities were unable to tackle the problems before Damilola's death.